Plastic bags can be divided into OPP, CPP, PP, PE, PVA, EVA, composite bags, CO extrusion bags and so on. The share of plastic packaging and plastic packaging products is becoming more and more large in the market, especially the composite plastic soft packaging, which has been widely used in the fields of food, medicine and chemical industry, among which the proportion of food packaging is the largest, such as beverage packaging, frozen food packaging, steamed food packaging, fast food packaging and so on. These products have brought great convenience to people's lives.
The analysis report of the global plastic consumer market shows that about 50% of the consumption is in the packaging industry, so packaging is a very important area. Nowadays, there are many advantages in film packaging, the first is to save energy, the second is to reduce weight. This is the requirement of packaging film. As the packaging product is different, the oxygen and water requirements are different, so that the fruit packaging can match.
The first trend of thin film packaging is to extend storage time, second recyclable and third biodegradable. In the past, because the pace of life was not so fast, people had a lot of time to buy things, so the demand for packaging was not so high. Now the situation is the opposite, because the pace of life is very fast, so when people buy things in the market, the time for shopping is getting shorter and shorter. In fact, consumers are not only buying. It's to buy products, to a greater extent, to purchase packaging, so it needs packaging to attract consumers.
This is also the development trend of the packaging industry, used to metal, now with the film packaging has a lot of advantages, the first is to save energy, second can reduce weight. This is the requirement of packaging film. As the packaging product is different, the oxygen and water requirements are different, so that the fruit packaging can match. This is the function of multilayer film. This is a five layer composite film, which is a high polymer with very low polarity on both sides. Because of their polarity differences, the permeability of the composite layer and the middle layer is easy to fall off, so a better polymer is needed.
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